/Engine/Plugins/Experimental/Mutable/Source/CustomizableObjectEditor/Classes/MuCOE/Nodes/CustomizableObjectNodeMaterialBase.h
Allow multiple connections to NodeCopyMaterial but only one connection to a NodeObject.
virtual bool ShouldBreakExistingConnections ( const [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * InputPin, const [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * OutputPin ) const